Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

1223results about "Rocking chairs" patented technology

Chair with a linkage assembly

A chair includes a control housing, a seat and a back support including an upwardly extending upright portion and a link portion extending forwardly from a lower portion of the upright portion. The link portion is pivotally connected to the control housing about a first pivot axis. The seat is connected to the link portion and is pivotable relative thereto. A linkage is coupled to the seat and is pivotally connected to the control housing at a second pivot axis positioned rearwardly and downwardly from the first pivot axis.
Owner:HERMAN MILLER INC

Chair construction

A chair includes a base having a control assembly operably supporting a seat assembly and also a back assembly for movement about a seat tilt axis and a back tilt axis, respectively. The back assembly includes a flexible sheet supported at upper / outer corners by a back support structure and hanging downwardly. The flexible sheet includes a lower portion coupled to the back support structure by a tensioner for holding the lower portion rearwardly. A vertically-adjustable lumbar mechanism is adjustably supported on the back support structure and operably engages the flexible sheet for flexing a lumbar area of the flexible sheet forwardly to provide an optimal ergonomic horizontal and vertical convex shape for postural lumbar support.
Owner:STEELCASE INC

Portable ventilator system

A portable ventilator uses a Roots-type blower as a compressor to reduce both the size and power consumption of the ventilator. Various functional aspects of the ventilator are delegated to multiple subassemblies having dedicated controllers and software that interact with a ventilator processor to provide user interface functions, exhalation control and flow control servos, and monitoring of patient status. The ventilator overcomes noise problems through the use of noise reducing pressure compensating orifices on the Roots blower housing and multiple baffling chambers. The ventilator is configured with a highly portable form factor, and may be used as a stand-alone device or as a docked device having a docking cradle with enhanced interface and monitoring capabilities.
Owner:VYAIRE MEDICAL 203 INC

Portable ventilator system

A portable ventilator uses a Roots-type blower as a compressor to reduce both the size and power consumption of the ventilator. Various functional aspects of the ventilator are delegated to multiple subassemblies having dedicated controllers and software that interact with a ventilator processor to provide user interface functions, exhalation control and flow control servos, and monitoring of patient status. The ventilator overcomes noise problems through the use of a noise attenuating system comprising noise reducing pressure compensating orifices on the Roots blower housing and multiple noise reducing chambers. The ventilator is configured with a highly portable form factor, and may be used as a stand-alone device or as a docked device having a docking cradle with enhanced interface and monitoring capabilities.
Owner:VYAIRE MEDICAL 203 INC

Reclining computer chair apparatus

An apparatus which will largely prevent irritated ligaments, and sore necks and backs arising from spending long hours at a computer terminal by allowing the user to position themselves in multiple comfortable positions is disclosed. The apparatus for use with a monitor and keyboard comprises: a base; a carriage slidably mounted on the base; a seat member having rear, and front side portions, said seat member carried on the carriage; a back member having a lower side portion pivoted to the rear portion of the seat member; a leg member having an upper side portion pivoted to the front side portion of the seat member; an arm member carried by the carriage, said arm member having a front end portion adapted to carry the keyboard; a monitor arm carried by the carriage; and motorized threaded screws used to move the carriage on the base, and move the back and leg members relative to the carriage.
Owner:MADDOX LEE W

Structure of a mesh back of a chair

A mesh chair back includes a loop-shaped frame, an elastic mesh part, a waist support unit, and a smooth separating plate; the loop-shaped frame has left and right upright portions; the elastic mesh part is positioned over and secured on the loop-shaped frame; the waist support unit is arranged behind the elastic mesh part, and connected to the left and the right upright portions of the loop-shaped frame at two ends in an up and down displaceable manner; the smooth separating plate is positioned between the mesh part and the waist support unit for preventing the waist support unit from rubbing and causing wear to the mesh part while the waist support unit is being adjusted in height; the waist support unit props the separating plate and the mesh part forwards such that the separating plate and the mesh part each has a forwards protruding portion.
Owner:COMFORDY

Seating unit with adjustable lumbar device

ActiveUS7097247B2Improved lumbar supportStoolsAdjustable chairsEngineeringLumbar
A seating unit includes a back support with a perimeter frame defining an opening, and a plurality of resilient members spanning the opening. An upholstery cover extends over and covers the resilient members and a front of the perimeter frame. A bow-tie-shaped lumbar device is positioned between the cover and sides of the perimeter frame for vertical adjustment. The lumbar device includes a body with end sections defining a greater dimension than a middle of the body. Upper and lower edges of the end sections are thin and serve to wedgingly slip between the cover and the resilient members in a manner leading the middle over irregular surfaces between the resilient members. A thick area between the upper and lower edges causes a change in lumbar support force and shape as the lumbar device is adjusted. Handles are attached to the body by stretchable fabric.
Owner:STEELCASE INC

Passenger seat with variable length seat bottom

A reclinable passenger seat having a seat frame mounting a seat bottom, a seat back extending upwardly from the seat bottom, and a seat bottom / seat back articulation assembly for simultaneously varying the adjustment of the seat bottom and seat back relative to each other. A translation linkage is provided for mounting the seat bottom and seat back for translating movement of the seat bottom relative to the seat back as the seat back is reclined from an upright position and raised to an upright position. The translation linkage extends the effective length of the seat bottom relative to the seat back to provide additional support to the buttocks and legs of the seated passenger.
Owner:BE AEROSPACE INCORPORATED

Lumbar flexing seating apparatus

InactiveUS7100983B1Degree of tilt is limitedImprove posturePortable framesOperating chairsButtocksEngineering
A buttocks seat is supported by a post tiltably affixed at a lower end to an upper face of a base. The post is also axially rotatable relative to the base, and threadably engaged with an underside of the seat for supporting the seat on the post, the seat squarely facing upright when the post is vertical. A hand wheel is affixed to the post for rotating the post relative to the seat and the base for selectively raising or lowering the seat relative to the base. A resilient bias urges the post to be vertical unless a seated user flexes his or her lumbar with sufficient force to overcome the bias. Preferably the post is tiltable over a conical range and the bias comprises a resiliently compressible, cylindrical ring coaxial with the post, and extending between and abutting the base and the underside of the seat.
Owner:GANT RICHARD A

Portable therapeutic seat exercise apparatus and method

A portable therapeutic seat exercise apparatus and method that provide a lightweight personal exerciser designed for a person to use to improve physical status, and for the exercise, alignment, and stress reduction of a person's trunk, spine, abdomen, pelvis, and thighs. It encourages and enhances low back mobility in contrast to the static nature of regular sitting. It consists of a lightweight contoured seating surface supported by at least one arcuate hemispherical base that allows unrestricted motion in all directions, including twisting, tilting, and rocking. It can be placed on many seating surfaces including but not limited to sofas, dining chairs, school desk chairs, office chairs, factory benches, and motor vehicle seats. Its use facilitates low back muscular stabilization, conditioning, strengthening, coordination, and enhancement of proprioceptive senses. Interchangeable parts and add-on attachments can be used in differing combination to vary height, depth, position, and arc of the seat-supporting base.
Owner:LOCKETT RICKY POOLE

Back support for seat-backs, in particular for motor vehicle seats

A lumbar support for seat backs, in particular of motor vehicle seats, has a forward-bowed support plate (1). The support plate (1) is height-adjustable, moving upward and downward on guide organs that are fixed with respect to the seat back, and is also variable in its curvature through the use of a motor-driven tension bracket that can be lengthened or shortened. The tension bracket consists of bracket regions (3a and 3b) that act on upper end region (1a) and lower end region (1b) of the support plate (1). The bracket regions have thread regions of opposite handedness pointing toward one another which are externally engaged by a common rotatable sleeve (11) with appropriately designed meshing areas. The drive motor (10) is fixed to a gear case (2) arranged behind the support plate (1). The motor (10) drives gear wheels of a gearbox whose final gear wheel (13a) stands in engagement with the sleeve (11). The sleeve has inside thread regions of opposite handedness.
Owner:MEGAPLAST SA

Method and apparatus for reducing noise in a roots-type blower

A Roots-type blower comprises a housing defining a rotor chamber and an inlet and outlet to the rotor chamber. First and second rotors are mounted in the rotor chamber, each rotor defining a plurality of lobes, adjacent lobes and the housing cooperating to define gas transport chambers. The blower is configured so that a net flow rate of gas into a gas transport chamber is generally or approximately constant, whereby a change in gas pressure in the gas transport chamber is generally or approximately linear, as the gas transport chamber approaches the outlet. In one embodiment, this is accomplished by providing flow channels extending from the outlet towards the inlet, and from the inlet towards the outlet, corresponding to each rotor. The flow channels permit gas to flow from the high pressure outlet to a gas transport chamber and from the gas transport chamber to the low pressure inlet. The resulting amelioration of pressure spikes associated with flow back substantially reduces the operational noise level of the blower.
Owner:PULMONETIC SYST

Chair

In order to provide a chair that can support near a pelvis or a lumbar portion of a person who sits on the chair irrespective of a body proportion the person or a way to sit, a boundary portion K between a back and a seat is arranged to be transformable or movable and the boundary portion K can be fixed at a position where the boundary K pushes against near the pelvis of the person with an operation from outside
Owner:KOKUYO CO LTD

Low-resistance exercise and rehabilitation chair

InactiveUS6855098B2Easy to operateSmooth and low-resistance operation of apparatusOperating chairsDental chairsGear wheelEngineering
An exercise and rehabilitation chair includes a framework having lower frame members, pivotal front legs, and elongate rear legs. The chair includes a seat assembly having a seat bottom and seat back and upper arms, each upper arm being pivotally coupled at one end to a generally upstanding support arm and at an opposed end to a front leg. Bearing housings pivotally connect corresponding support arms and rear legs and establish a fulcrum about which the seat assembly may rotate. The bearing housings may be slidably positioned longitudinally along corresponding support arms and rear legs using pin fasteners or, alternatively, using motorized gear assemblies. The displacement of the fulcrum relative to a user's hips is adjustable for regulating the resistance of chair operation. A foot assembly is pivotally coupled to the front legs. All pivotal connections correspond anatomically to a user's joints for low joint stress and low-resistance exercise.
Owner:REITZ ALAN S +2

Compressor control system for a portable ventilator

A method and apparatus for controlling a brushless DC (BLDC) motor over a wide range of angular speeds is presented. Analog magnetic sensors provide continuous signal measurements related to the rotor angular position at a sample rate independent of rotor angular speed. In one embodiment, analog signal measurements are subsequently processed using an arctangent function to obtain the rotor angular position. The arctangent may be computed using arithmetic computation, a small angle approximation, a polynomial evaluation approach, a table lookup approach, or a combination of various methods. In one embodiment, the BLDC rotor is used to drive a Roots blower used as a compressor in a portable mechanical ventilator system.
Owner:VYAIRE MEDICAL 203 INC

Back support for seat-backs, in particular for motor vehicle seats

PCT No. PCT / EP98 / 01655 Sec. 371 Date May 13, 1999 Sec. 102(e) Date May 13, 1999 PCT Filed Mar. 21, 1998 PCT Pub. No. WO98 / 45138 PCT Pub. Date Oct. 15, 1998A lumbar support for seat backs, in particular of motor vehicle seats, has a forward-bowed support plate (1) that is adjustable in its curvature. The support plate (1is mounted at one horizontal end region (1a) on laterally spaced guide elements that are parallel to one another and fixed with respect to the seat back so that it is vertically movable. The vertical guide elements consist of ribs (2) of a guide plate (3) that is fixed with respect to the seat back. The guide plate (3) has openings (4), which possess vertical guide edges (4a) that are parallel to one another. Through the guide edges (4a) pass, from the front, end-mounted brackets (1b) of the support plate (1). The brackets (1b) have necks (1c) corresponding to the spacing of the guide edges (4a), and widen again on the back of the guide plate (3).
Owner:MEGAPLAST SA

Seating unit having motion control

A seating unit includes a seat, a back, a base, and a motion control having a plurality of flexible supports for operably supporting the seat and back on the base. The flexible supports are movable in a generally fore-to-aft direction but stiff in a generally vertical direction, and further the flexible supports have end sections projecting generally outward from said base for operably engaging the seat and / or back, so that when the flexible supports flex in the fore-to-aft direction, they provide for directed movement of the seat and / or the back. In one form, the flexible supports form leaf-spring-like beams with resiliently bendable ends that flex in a slightly angled fore-aft direction to provide a predetermined synchronized path of movement of the seat and back.
Owner:STEELCASE INC

Repositionable child support device

An infant glider device is disclosed. The glider includes a base, a carriage that moves in an oscillatory motion along a predetermined path with respect to the base, and seat connected to the carriage. The seat is rotationally repositionable about an axis generally perpendicular to the carriage, and is adapted to be reoriented from a first seat facing position to a second seat facing position, and vice versa.
Owner:MATTEL INC

Swivel and reclining chair

A swivel and reclining chair has a base support, a base bowl mounted on the base support, and a seating bowl slidably disposed in and over the base bowl. A plurality of friction reduction features are disposed on the inside surface of the base bowl. The outer surface of the seating bowl is spherical in shape and rests on the friction reduction features. The seating bowl is larger in area than the base bowl, and can freely slide in two dimensions as well as rotate in a spherical surface. Optionally, a guard ring is disposed outside of the base bowl and is attached to the base bowl at their rims.
Owner:NAZARI JOSEPH

Reclining motorized multi-position chair with rocking and pivoting action

InactiveUS6659556B2Easy to modifyIncreases range of angular motionOperating chairsSofasEngineeringRestoring force
A tilt adjustment assembly for a motorized reclining chair having a base frame adapted for rest on a floor surface. A seat and a back articulated support linkage are interconnected together for displacement of a seat and back of a reclining chair. An intermediate frame is mounted on the base frame through spring attachments, whereby to impart a rocking motion to the chair. A pair of foot rest linkages interconnect each of two of the said seat articulated support linkages to a foot rest plate. The tilt adjustment assembly comprises a motor-operated actuating rod secured at a free end to a sliding member to guidingly displace that member along a straight axis in a fixed plane and to any desired position along the axis. A pivotal link arm is pivotally secured at one end of the sliding member. A transverse linkage securing rod is secured to a second end of the pivotal link arm and extends transversely thereto. The transverse securing rod has opposed ends pivotally connected to an intermediate link arm of a respective one of the pair of foot rest linkages. Tensioning springs are secured to each of the pair of foot rest linkages for applying a restoring force to the foot rest to a retracted position.
Owner:PELLERIN RENE

Back construction for seating unit

A chair includes a base having a control assembly operably supporting a seat assembly and also a back assembly for movement about a seat tilt axis and a back tilt axis, respectively. The back assembly includes a flexible sheet supported at upper / outer corners by a back support structure and hanging downwardly. The flexible sheet includes a lower portion coupled to the back support structure by a tensioner for holding the lower portion rearwardly. A vertically-adjustable lumbar mechanism is adjustably supported on the back support structure and operably engages the flexible sheet for flexing a lumbar area of the flexible sheet forwardly to provide an optimal ergonomic horizontal and vertical convex shape for postural lumbar support.
Owner:STEELCASE INC

Seating furniture item, in particular office chair

A seating furniture item, in particular an office chair, has a seat fastened on a seat support and a backrest fastened to a backrest support, the backrest support being articulatedly arranged on a base support and the backrest support and the seat support being articulatedly connected with each other via two levers, and in which one of the two levers is positively guided directly on the base support.
Owner:INTERSTUHL BUEROMOEBEL GMBH & CO KG

Powered Glider Recliner Linkage Mechanism

A glider-recliner-style seating unit (glider recliner) that includes a linkage mechanism adapted to move the glider recliner between closed, extended, and reclined positions is provided. The glider recliner is powered by a linear actuator that facilitates automated adjustment of the linkage mechanism. This adjustment of the linear actuator is sequenced into a first phase and a second phase. A stroke of the linear actuator in the first phase acts to adjust the linkage mechanism between the closed and extended positions by extending or retracting ottoman(s) attached to a footrest assembly. A stroke in the second phase acts to adjust the linkage mechanism between the extended and reclined positions by translating a seat-mounting plate forward or rearward at a consistent inclination angle while, concurrently, tilting a back-mounting link. Accordingly, the phase sequencing ensures that the linkage mechanism commences adjustment within the second phase only once the first-phase adjustment is substantially complete.
Owner:L & P PROPERTY MANAGEMENT CO

Seat bolster adjustment apparatus and method

An active bolster adjustment apparatus for use in vehicle seats includes a mounting plate connected with the vehicle seat. An adjustable bolster slider is in sliding communication with the mounting plate, and has an adjustment arm and a pressure surface. A drive unit having an actuator and a gear set and the gear set is in direct communication with the adjustable bolster slider.
Owner:L & P PROPERTY MANAGEMENT CO
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products